Schneider Electric H321RB Fusible Disconnect Enclosure

Schneider Electric's Square D H321RB fusible disconnect enclosure is a 30 A, 240 V, three-pole fusible disconnect switch housed in a NEMA 3R enclosure suitable for outdoor or exposed indoor installations. This model accepts standard Square D fuse classes—H, J, K, L, and R—to match protective devices with your system, and it features a bolt-on hub provision and a neutral terminal to simplify wiring in 3P4W configurations. Common applications include isolating power to motors, pumps, HVAC units, conveyors, and other commercial or light-industrial equipment where a weather-resistant disconnect at the point of use is required. The 3R enclosure provides rain-sleet-ice protection, helping maintain safe operation in challenging environments while delivering a compact, code-compliant solution for safe power disconnection at service entrances or equipment disconnect points.